Wire-coiling mechanism.



c. PO RATH. WIRE COILING MECHANISM.

APPLICATION FILED OCT-19.1917.

1,260,799; Patented Mar. 26, 1918.

2 SHEETS-SHEET l.

INVE/VI'OI? (4e: 6? Paaww C. A. PORATH.

WIRE COILING MECHANISM.

APPLICATION FILED OCT. 19. 1917.

Patented Mar. 26,1918.

2 SHEETSSHEET 2.

C421 ,4 POE/4.77%

Gianna; non-Armor xoxoivio, INDIANA.

win-momma Mechanism.

Specification of Letters Patent.

Patented ltllar. 26, 19 18.

Aiiii'l'icatioirfiled Oe'teher 19, 1917. SerialNoL 197,476.

To allwh o'm a ma' caaeemt- Beit known'that I CARL A. PonATH, a

citizen of the United 'states, anda resident of Kokomo, county of Howard, and State of Indiana, have" invented a certain new and useful VVire Goiling Mechanism; and I do hereby declare-that the following is a full, clear, and exact description thereof, refer ence being had to theaccompanying drawings, in which like letters refer to like parts;

This invention relates to a wire coiling mechanism. One-of the features of the invention-is the provisionof ahead and'mechanism therein for coiling a wire in spiral formation. Another feature of the invention is the-provision of meansfor giving a positive drive to the head, thus formingthe pitch of the spiralexactly" uniform throughout the length'of thewire;

Another feature of the invention is the provision of an adjustable part in the coiling mechanism whereby the pitch; of the spirals may be varied. An additional fea-. ture of the invention isthe provision of an adjustable non-rotating roller for engagement with the wire whilepassing through the coiling head, so that. when a portion of the face of the roller becomes worn the roller may be loosened and turned until an unworn section thereof is brought into the path of the wire, whenthe roller is again locked against-rotation; This feature of the invention permits the roller to be used until entirely worn out.

A further feature of the invention isthe provision of a positive drive for .themeans employed for feeding the wire through the coilingheachwhich driving means cot'iperates with the positive driving means for the coiling head.

The full nature of the invention will be understood from the accompanying drawings and the following description and claims.

Figure 1 is a top plan view of the wire coiling machine. Fig. 2 is a side elevation of the upper portion of the coiling'mechanism. Fig. 3 is a sectional view as seen on line 8--8, Fig. 1. Fig. 4: is a central longitudinal sectional view through the coiling head and parts cooperating therewith, the position of the coiling head being at right angles to the positions shown in Figs. 1

and 2. Fig. 5 is a sectional-view as'seen on line'5 5, Fig. 1; Fig. 6 isafaceview of a roller employed in connection with the coiling'mcchanism. Flg. 7 is an edge elevatlOIlthGIGOf. Fig. 8 is an elevation of one of the staysproduced from the coiledwire.

Referringto the drawingsin which similar reference' numerals designate corresponding. parts throughout the several views, 1 indicates a frame of any preferred construction in which is mounted a driving shaft 2, said shaft being driven in any preferred manner. Fixed to the shaft 2 is a bevel gear 8 which meshes with a similar gear 4.,saidlatter gear being attached to a second shaft 5, which is mounted in suitable bearings 6 on the frame 1. r

Mounted upon the second shaft 5 is a sprocket gear 7 around which passes a sprocket chain 8, said chain also passing around a sprocket 9 carried by a tubular shaft 10.

The tubular shaft 10 is mounted in bearings 11* which bearings are preferably secured to the exterior face of the frame 1. The inner end of the tubular shaft 10 is provided with a reduced neck portion 12 which is exteriorly threaded and enters the threaded end 13 of the-coiling head let, said head having a central longitudinal bore 15 which registers with the longitudlnal bore 16 0f the tubular shaft 10.

Removably attachedto'the outer end of the coiling head 14 is a thimble or eyelet 17 which. is employed for guidingthe wire 18 into the coiling-head. In order to coil the'wire18 as it passesthrough the head 1% to form'a spiral, as best shown at 19 in Fig. 4, a pair of coiling pins 20 are extended transversely through the coiling head 1a and intersecting the bore 15 through the head, said pins being preferably positioned to one side of the longitudinal axis of the bore and in spaced relation with each other.

Extending transversely through the coiling head 14 and at right angles to the coiling pins 20 is a recess 21 through which extends a bolt 22, the lower end of the bolt having a centrally disposed slot 23 for the reception of roller 24. The roller is held normally stationary in the slot 23 by any suitable means, as by introducing a screw screw which abuts against a shoulder 28 on the bolt 22. By constructing the screw in this manner, the roller 2% is securely clamped between the bifurcated ends of the bolt 22 and to insure that the roller will not rotate while in operation, one or both faces of the roller may be provided with ribs 29 which grip against or bite into the adjacent parts of the bolt.

The bolt 22 is adjusted longitudinally by threading the free end thereof and engaging a nut 30 therewith, said nut, when turned on to the bolt, pressing against one face of the coiling head 14, thus drawing the bolt longitudinally through the recess to the desired point. The bolt 22 is held against rotating in the recess 21 by making the diameter of the roller 24 greater than the diameter of the bolt so that the edge of the roller will project beyond the slot 23 and by forming grooves 31 for the reception of the pro ecting edges of the roller, the bolt will be held against rotating movement.

It has been found by experience that in order to produce the proper twisting or coiling results it is necessary to hold the roller against rotation so that the wire will merely slide over the roller, but as the passage of the wire over the roller gradually wears that portion of the roller engaged by the wire, the face of the roller will eventually be so worn that the proper results cannot be accomplished, hence by attaching the roller to a bolt in the manner shown, the screw can be loosened to permit the roller to rotate and by properly adjusting the roller to present a new section of the roller tothe wire, the entire peripheral surface of the roller can be successively used until the roller is entirely worn out, thereby greatly enhancing the life of the roller. 7

In entering the wire 18 into the coiling head 14 the nut 30 is turned outwardly on the bolt 22 and the bolt moved longitudinally through the recess until the end attached to the roller is positioned beyond the inner edges of the coiling pins so that the end of the wire will pass between the coiling pins and the roller. After the wire has been properly positioned between the coiling pins and roller the nut 30 is again turned on to the bolt and the roller moved inwardly the required distance, said roller passing between the coiling pins. This causes the wire to travel in a circuitous path and in view of the fact that the wire is fed in a straight line into the coiling head, while the coiling head rotates around the wire, a perfect spiral formation is produced.

The prime object in coiling the wire in this manner is to form an interlocking fence stay. As the wire is cut in prescribed lengths and then bent at its longitudinal center, it is absolutely necessary to have all of the coils perfectly uniform as the bent sections of the wire are interwound with each other and if there should be any variation in the coils, the stay could not be engaged with the strands of wire forming the fence and consequently the wire and labor in coiling the same would be entirely lost. It is therefore necessary that the tubular shaft 10 of the coiling head It be positively driven so that there can be. no slippingaction between the driving shaft 2 and the tubular shaft 10. This is accomplished, as previously stated, by employing a sprocket chain Sand sprocket wheels 7 and 9, the proper tension being given to said chainby placing a sprocket idler 32 below the chain 8 between the sprockets 7 and 9, said idler being supported by a shaft 33 mounted in a bearing 34: on the frame 1. p j

It is likewise necessary that a positive feed be provided for feeding the-wire into the ceiling head and one that willlact in positive unison with the operation of the coiling head. To this end feed rolls 35 are mounted upon shafts 36, said rolls and shafts being arranged in pairs with one pair above the other, said rolls having intermeshing gears 37, with the lower set of which meshes a gear 38 carried by an auxiliary shaft 39, 7 said shaft being positively driven from the driving shaft 2 through the medium 'of intermeshing gears 40 and 41 and as the tubular shaft 10 is also positively driven from the driving shaft 2, said feeding roller and coiling head will be operated in perfect unison with each other.

It will be understood of course that instead of using a chain drive for the tubular shaft 10 a series of gears may be employed or any other suitable means for giving a positive drive to the tubular shaft or such as will not permit any slippagebetween the driving shaft and tubular shaft.

As the wire travels through the coiling head it likewise passes through the bore 16 in the tubular shaft 10 and enters a trough 4-2 at the open end of the bore 16 and travels through said trough to any suitable cutting device for severing the wireinto lengths.

The invention claimed is:

1. In a wire coiling mechanism the com bination with a wire feeding device, of means to bend the wire into substantially spiral formation, comprising a rotatably mounted tubular section, a hollow head attached to one end of said tubularsection, a thimble at the other end of said head, coiling pins extending transversely through the opening in said head and spaced apart, a roller mounted in said head between said coiling pins, means to clamp the faces of said rollerto hold said roller against rotation, means to adjust said roller outward or between said coilingpins and means to Ipositively rotate said tubular portion and 2. In a Wire coiling mechanism, the combination with a wire feeding device and a supporting frame therefor, of a hollow shaft rotatably mounted on said frame, positive driving means for said hollow shaft, a head I the faces of said roller to normally hold the roller against rotation and means to adjust said bolt longitudinally whereby the wire will be caused to travel inwardly between said pins as the wire is fed into said head.

In a wire coiling device, a coiling head having a longitudinal bore and a transverse recess intersecting said bore,a pair of spaced coiling pins extending transversely through the coiling head, a bifurcated bolt extending through said recess, a roller between the bifurcated ends of the bolt, means to clamp the bifurcated ends of the bolt against the faces of the roller to hold said roller against rotating movement, and means to fiopies of this patent may be obtained for adjust said bolt longitudinally to move said roller to position between said coiling pins.

4C. In a wire coiling mechanism, a rotatable coiling head having a longitudinally extending bore, and a transverse recess intersecting said here, a coiling pin extending transversely through the bore at each side of the recess, a bolt extending through said recess, one end of the bolt being slotted, a roller positioned in the slot of the bolt, means to lock the parts of the bolt against said roller, means on the roller for engagement with the bolt for preventing rotation of the roller when in use, means cooperating with the roller for holding the bolt against rotation, and means to adjust said bolt longitudinally.

5. In a wire coiling i'nechanism, a coiling head having a central. bore, and a laterally extending recess, a bolt adapted to enter said recess, one end of the bolt being slotted, a roller entering the slot in the end of the bolt, a screw extending through the bolt and roller for clamping said roller against rotation with respect to the bolt, and ribs on said roller adapted to bite into the adjacent part of the bolt to hold the roller in fixed relation with the bolt.

In witness whereof, I have hereunto afiixed my signature.

CARL A. PORATH.

five cents each, by addressing the Commissioner of Eatents,

Washington, D. C. 

